This paper describes a proposed design method of asphalt concrete pavement for airport based upon an extensive literature survey on the thickness design methods and the executive specifications for bituminous airport pavements, the detailed results of which have been published in Technical Notes of Port & Harbour Research Institute, Nos. 52 and 53.
　The proposed method includes the characteristics as follows.
(1) The concept of traffic intensity, Coverage, was introduced as one of the factors to determine pavement thickness.
(2) It requires to calculate the anticipated uneven settlements of the pavement surface due to the settlement of subgrade and subsoil consolidation and to check them with the ICAO criteria on the longitudinal slope requirements of pavements.
(3) It requires to calculate the shear stresses due to the gear load and to check them with the shear strength of subsoil when it is of soft ground type where the conventional CBR method is unpracticable.
(4) The concept of the equivalent layer depth of pavement materials is introduced to allow the reduction in layer thicknesses according to the quality of pavement materials.
(5) The curves originally developed by the U.S. Corps of Engineers is adopted to find the compaction requirements of base, subbase and subgrade.